Reply by DougRog

I take a strong neo (Neodymium) magnet in my hand (hold it like a pencil) and quickly slide it over each piece of wood. You’ll quickly find if there are any hidden nails when the magnet tries to grab any metal object. You probably don’t need it in this case, but works great for old boards that you are trying to salvage.

The “neos” are the strongest magnets around, last forever, and have the strength to ‘grab’ hidden nails. (It doesn’t pull them out, just shows you where they are).

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